Also, the '40-'41 wheels have the flat area around each lug hole.
The '46-'48 are volcanod out around each lug hole, making them
a lot stronger. The '40-'41 wheels could crack real easy from the
lug hole to the center of the wheel, because they are flat around
the lug holes... Below is a picture of each lug hole design.
Click on pics to Enlarge.
